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प्रश्न
Match column A with column B.
|
Column A |
Column B |
|
(a) Element short by 1 electron in octet |
(i) Transition elements |
|
(b) Highly reactive metals |
(ii) Noble gases |
|
(c) Non-reactive elements |
(iii) Alkali metals |
|
(d) Elements of groups 3 to 12 |
(iv) Alkaline earth metals |
|
(e) Radioactive elements |
(v) Halogens |
|
(f) Elements with 2 electrons in the outermost orbit |
(vi)Actinides |
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उत्तर
|
Column A |
Answers |
|
(a) Element short by 1 electron in octet |
(v) Halogens |
|
(b) Highly reactive metals |
(iii) Alkali metals |
|
(c) Non-reactive elements |
(ii) Noble gases |
|
(d) Elements of Groups 3 to 12 |
(i) Transition elements |
|
(e) Radioactive elements |
(vi) Actinides |
|
(f) Elements with 2 electrons in the outermost orbit |
(iv) Alkali earth metals |
APPEARS IN
संबंधित प्रश्न
Write the name from the description.
The period with electrons in the shells K, L, and M.
Write the name from the description.
The group with valency zero.
Write the name from the description.
The family of metals having valency one.
Write the names from the description.
The metalloids in the second and third periods.
Write the names from the description.
Two elements having valency 4.
Write a short note on the following type of element –
inner transition elements
Statement: Elements in a group generally possess similar properties but elements along a period have different properties.
Reason: The difference in electronic configuration makes the element differ in their chemical properties along a period.
Group 3-12 elements in the modern periodic table are called d block elements.
Match the columns:
| Column ‘A’ | Column ‘B’ |
| Manganese | (a) Metal |
| (b) Non-metal | |
| (c) Transition metal |
Answer the following questions related to the modern periodic table.
How are elements placed around the zig-zag line in the p-block of the periodic table?
